If your argument is that the subscription model allows uncertain developers to get involved, I would argue that tools like this should be purchased by those who are certain they are going to use them. Otherwise, the only benefit is to the tool-maker - and that's the case here. The subscription model only really benefits the producer of the product - not the user, who is ultimately only able to keep using the tool as long as they are paying for it, on a regular basis. Meh. No thanks!
